I've looked in the Real Academia Española dictionary and I can't find any information regarding why Spanish uses the preposition a for cooking styles, and I've noticed French and Italian do it too. I ...

I have come across two translations: acerca de and sobre.
Which one is the most accurate translation for a construct such as “This book is about a cat” or “They are talking about you”?
If they both ...

In my spanish text book there is a sentence:
¿Tenéis que contestar a las preguntas de la profesora?
Since "contestar" can be followed directly by objects, why should we use a preposition "a" before ...